Best Supports Under a King Size Bed

Adding support for king bed

You finally did it, you bought one of those giant king size mattress sets you’ve always dreamed of and now you realize the bedding is more expensive, they are heavy, and much wider than you thought. These wider beds can have a major drawback to them especially when compared to smaller queen and full size mattresses which are less likely to start sagging prematurely. Add in these beds have to carry additional support of an adult couple, the kids, and the family pets there is a real situation about to develop, sagging. Instead of supporting the bed with bricks and cinder blocks consider a stable and good looking solution that will properly distribute bed weight and add many years of life to your sleep system. Think about adding supports to your king bed. Frame choices can be shopped below.

Best Supports Under a King Size Bed

The best supports for a king size bed are usually those that do not come standard with the bed when you buy it. Surprisingly, many brand new king sized beds do not come with ample support underneath to hold up and stabilize the middle of the bed. Some Kings and California Kings have nothing at all.

While most king size beds come with headboards and footboards, they rarely include a support system that will stand the test of time. The majority are nothing more than cheap wooden legs that are weak and slide out of position. The legs are anchored to low-grade wooden slats.

Our Solution to the problem:

We recommend steel center support systems. These are typically sold separately by companies like Glideaway, Leggett & Platt, and Knickerbocker who specialize in heavy duty metal bed frames made of super hardened steel. In addition to complete frames, manufacturers build special center support systems for the middle of the beds that have wooden and metal side rails as a low cost solution to a new bed frame.

What kind of king support frame do you need?

Follow these steps to make sure you get the right king support frame:

Determine if your frame will need to connect to a headboard or a headboard and footboard.

Does the bed currently have metal side rails or wood?

Do these rails attach by nuts and bolts or does it hook into vertical slots?

Measure the space between the bottom side of your boxspring and the floor. Make sure the frame or support legs will reach from the bottom of the boxspring down to the floor for proper support.

King Bed frames and Center Support Systems That Will Solve Your Problem

GS3 XS, and BB 8-18 our 3 of our center support systems that vary in price and will attach to wooden sides of a bed with a headboard and footboard.

K80, F88003, and K83 are the best choices for beds with hook in headboards and footboards.

K88N can be used with a headboard only that has hook in slots attachments.

K43 WB and 44 RR frame will bolt up to headboards with holes that are predrilled into the legs and can easily be connected with the correct length bolts and nuts.

BBK43 WB and BB44 frames bolt up to headboards and foot boards with bolt up connections.

Whatever you choose be sure you understand how the frame connects and that you are getting the proper size.

Not sure and need more help? Give us a call toll free 1 888 785 2337

Author: Douglas Belleville

Doug Belleville and his father Dave own and run STLBeds - a specialty sleep store located in Arnold, MO. The staff at STLBeds is highly educated about sleep, comfort and their special sleep products. STLBeds only carries high quality mattresses and bed-related products. You won't find the brand names here - click here to find out why!

Christy, You did not share many details about your bed so I will take a guess that the bed you have includes a wooden headboard, footboard and wood side pieces called rails. The rails should include a protruding ledge on the insides where slats can rest. Our feeling is that most bed slats are sub par anyway and should be replaced with steel versions that have supportive legs that will decrease weight on the side rails reducing the possibility of cracking or splitting. Our center supports page shows all of our center supports. In particular based on my guess of what you have our GS3XS, G-Force II, or one of the 3 different heights offered in our BBK series of supports.

Sure Colleen, It is important that you take a moment to read all the details for the center support steel bed slats. It will assure you of things like correct fit, proper slats to work with your frame and bed, and other important details that will be specified. Click here to see all of our steel bed slats.

Hi Annette, I must admit I have never had anyone ask for a wooden block in leu of a bed frame so I am going to guess what your are attempting to do. If you are looking for a wood platform bed that would eliminate the need for a boxspring and frame then simply do a search for wood platform beds. Be sure to look for solid wood surfaces or slats that are closely spaced preferably with feet or some kind of middle support that reaches the ground to prevent sagging in the middle. Hope this is what you were asking? Doug

Purchased new queen size bed, with center support leg; salesperson recommended leaving some clearance, about 3/4″, between bottom of leg and floor to compensate for mattress and slat flex when bodies are in or out of bed. Is this good advice?

Art, If you have wooden slats then you can use something like the Garrett Supports with which have Adjustable Center Legs for you Bed Frame Wooden Slat Support. You could also use the Bed Claw® which is also made to install in the middle of a wooden slat. It has a Adjustable Height Bed Unibody Center Support Leg. There are others and I would recommend multiple legs. If your frame has a steel center support bar I am pretty certain you will need to replace the entire bar with the legs unless the retailer or manufacturer happens to sell just the leg. I can tell you this is highly unlikely. To better support! Doug

BlueEyedBaby, I looked at the frame that is coming with the bed and it will support a split boxspring. As far as being enough support, I believe it is adequate for the typical sized adult couple and you should not have any issues. Keep in mind I cannot see every detail of construction and quality, but with that said it should easily suffice. If you are looking to do something heavier we will need to wait until you receive it and have you text or email specific photos and then we can go from there. Doug

I am looking to purchase extra support for my king size bed. The bed has been assembled about a year and a half and I can tell the support under the box spring isn’t holding up the way it used to. To the best of my knowledge I would either need to replace the support I have underneath or just add to it. I believe the rails are wooden (I’m going off of memory here) and hook into both the headboard and footboard by slots. The metal rods that came with the bed for support aren’t quite tall enough to give effective support. Can you steer me in the right direct of what I should do?

Hi Kelsea, If you go with a center support one of these might work. Please read the descriptions to be sure that the center support will work for your application. If you prefer a personal touch and someone to assist you give us a call 1 888 785 2337 Doug